1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x6bf0a327b9af196893241636bf413590f0c26af790eff716243fe831ed185df3. Chain 2 (Bitcoin): anchored in block 953778 (2026-06-15T11:57:35Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/c69a9882-7c1b-4de4-9ac6-548e88198292.json and https://artists.proofprofile.net/proofs/artist/c69a9882-7c1b-4de4-9ac6-548e88198292.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x300673bcd1ca76a880700a26f8e6cd372748fb5b4d1e89a66a81ef56411baef5. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2400460.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ed9789dc751e12d6a2bdea196675d41aaafab0738d45e35142045f239bbedb1. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2400441.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xbb31bcbdf805a90bbd10d0e0a6635b65edaa7d33cc6a669d1f7f9d638edcff98. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2400402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0794f1759574df2803925eb225cc958936fab67ed74af20024092415931f3984. Chain 2 (Bitcoin): anchored in block 956302 (2026-07-02T03:30:09Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2400398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b9aef456f5327dad930ce757db8545fd532324063fa588d3e2600eea5070f8. Chain 2 (Bitcoin): anchored in block 956375 (2026-07-02T16:51:38Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2400415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eff1504ec681672a86e40eb44733f6a65ac0609f89f63f3a626cf01bcb384af. Chain 2 (Bitcoin): anchored in block 957061 (2026-07-07T16:07:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2400286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9ae60b7f62b9083306c15350b63d04cd2b8776e2fd5d4c6fec8e78275882e92e. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2300164.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed14897e4d7893af8202fe644e384a7914396c4241f352b564b9446d563bff8. Chain 2 (Bitcoin): anchored in block 957020 (2026-07-07T09:18:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2300054.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f4de4fcef7ec32b934bf176a482c38cc77117f8a7b69a34e39965a4922a70c6. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2300011.
Misty Mornings - Piano and Cello Version
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84c09655b5da1375c955a5bc1cf22143ed86566eadb13d3ae17b7c6208bfb857. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2300012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x326c4499509584b08bbecbddfcaddc1909a6e3b3dbffa06754c6df8d719a155d. Chain 2 (Bitcoin): anchored in block 956312 (2026-07-02T05:09:12Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2400483.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb410e7d4bd208f02230435a7b6d7ff4852f812e1dc1e7790c3f5b2b1523f1e8f. Chain 2 (Bitcoin): anchored in block 956304 (2026-07-02T03:55:08Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2400465.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0794f1759574df2803925eb225cc958936fab67ed74af20024092415931f3984. Chain 2 (Bitcoin): anchored in block 957124 (2026-07-08T03:53:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2400398.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x11b9aef456f5327dad930ce757db8545fd532324063fa588d3e2600eea5070f8. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2400415.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7eff1504ec681672a86e40eb44733f6a65ac0609f89f63f3a626cf01bcb384af. Chain 2 (Bitcoin): anchored in block 957073 (2026-07-07T18:39:05Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2400286.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ed14897e4d7893af8202fe644e384a7914396c4241f352b564b9446d563bff8. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GX8UM2300054.